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Finding the Fourth Proportional to 1,368,315, 1,888,333.06 and 764,703

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Solution

The fourth proportional to 1,368,315, 1,888,333.06 and 764,703 is: 1,055,322.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,315 : 1,888,333.06 = 764,703 : x
  2. Step 2: Convert to fraction form
    1,368,315/1,888,333.06 = 764,703/x
  3. Step 3: Cross multiply
    1,368,315x = 1,888,333.06 × 764,703
  4. Step 4: Simplify right side
    1,368,315x = 1,444,013,955,981.18
  5. Step 5: Solve for x
    x = 1,444,013,955,981.18/1,368,315
  6. Step 6: Final answer
    x = 1,055,322.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.